Results 31 to 40 of about 166,407 (356)

Electrical bearing failures in electric vehicles

Friction, 2020
In modern electric equipment, especially electric vehicles, inverter control systems can lead to complex shaft voltages and bearing currents. Within an electric motor, many parts have electrical failure problems, and among which bearings are the most ...
Feng He, Guoxin Xie, Jianbin Luo
doaj   +1 more source

Adélie penguin foraging location predicted by tidal regime switching. [PDF]

PLoS ONE, 2013
Penguin foraging and breeding success depend on broad-scale environmental and local-scale hydrographic features of their habitat. We investigated the effect of local tidal currents on a population of Adélie penguins on Humble Is., Antarctica.
Matthew J Oliver, Andrew Irwin, Mark A Moline, William Fraser, Donna Patterson, Oscar Schofield, Josh Kohut   +6 more
doaj   +1 more source

Bearing Current and Shaft Voltage in Electrical Machines: A Comprehensive Research Review

Machines, 2023
The reliability assessment of electric machines plays a very critical role in today’s engineering world. The reliability assessment requires a good understanding of electric motors and their root causes.
Kotb B. Tawfiq, Mehmet Güleç, Peter Sergeant   +2 more
doaj   +1 more source

Study on Electromagnetic–Dynamic Coupled Modeling Method—Detection by Stator Current of the Induction Motors with Bearing Faults

Machines, 2022
Detecting motor bearing faults by stator currents is of great importance as it improves the adaptability of measurement means to different environments and reduces the number of sensors.
Liangyuan Huang, Niaoqing Hu, Yi Yang, Ling Chen, Jihong Wen, Guoji Shen   +5 more
doaj   +1 more source

Current Status of Hybrid Bearing Damage Detection [PDF]

Tribology Transactions, 2005
Advances in material development and processing have led to the introduction of ceramic hybrid bearings for many applications. The introduction of silicon nitride hybrid bearings into the high pressure oxidizer turbopump, on the space shuttle main engine, led NASA to solve a highly persistent and troublesome bearing problem.
PAULA J. DEMPSEY, JOSEPH M. CERTO, WILFREDO MORALES   +2 more
openaire   +1 more source

Shaft Voltage Reduction Method Using Carrier Wave Phase Shift in IPMSM

Energies, 2021
Common-Mode Voltage (CMV) induces shaft voltage and bearing current due to the electrical interaction with the parasitic capacitance of the motor. CMV, shaft voltage, and bearing current are considered the major causes of bearing fault.
Jun-Hyuk Im, Yeol-Kyeong Lee, Jun-Kyu Park, Jin Hur   +3 more
doaj   +1 more source

Preserving the gauge invariance of meson production currents in the presence of explicit final-state interactions [PDF]

, 2000
A comprehensive formalism is developed to preserve the gauge invariance of currents describing the photo- or electroproduction of mesons off the nucleon when the final-state interactions of mesons and nucleons is taken into account explicitly.
C. H. M. van Antwerpen, E. Kazes, F. Gross, H. Haberzettl, H. Haberzettl, Helmut Haberzettl, J. C. Ward, K. Ohta, N. M. Kroll, S. I. Nagorny, S. I. Nagorny, S. I. Nagorny, S. Wang, T. Feuster, Y. Takahashi   +14 more
core   +2 more sources

Parent‐to‐Child Information Disclosure in Pediatric Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor, Flora Hoodin, Michelle Byrd, Kristin A. Kullgren, Leah LaLonde, Lauren Benkoske, Patrick Smith, Dawn Carson, Karen MacDonald, Susumu Inoue, Brenda Kitchen, Kate Gowans, Gregory A. Yanik   +12 more
wiley   +1 more source

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

Pediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard, Anni Young Lundgaard, Laura Ann Rechner, Danijela Dejanovic, Hanne Krogh Rose, Jolanta Hansen, Leila Vaalavirta, Miia Mokka, Marianne Aznar, Peder Skov Wehner, Lisa Lyngsie Hjalgrim, Maja Vestmø Maraldo   +11 more
wiley   +1 more source

Review on Tribological and Vibration Aspects in Mechanical Bearings of Electric Vehicles: Effect of Bearing Current, Shaft Voltage, and Electric Discharge Material Spalling Current

Lubricants
Electric motors play a decisive role in electric vehicles by converting electrical energy into mechanical motion across various drivetrain components.
Rohan Lokhande, Sitesh Kumar Mishra, Deepak Ronanki, Piyush Shakya, Vimal Edachery, Lijesh Koottaparambil   +5 more
doaj   +1 more source